Curtain stretcher



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E. S. ANDERSON. CURTAIN STRETCHER FILED AUG 2 192! Limi Il lppnll mwmm "n une t it niet time a EMlL'L S. ANDERSON, OF CIEEIECAG, LLIEFTOES.

CURTA'IFT STRETCHER.

i Application 'led August 2, 1921. Serial No. 439,216.

/"o all whom t may concern Be it known that FMIL S. ANDERSON, a citizen of the United States of America, residing at Chicago, lin the county of Cook and State of illinois, has invented new and useful improvements in Curtain Stretchers, of which the following is a speciiication.

The object of 'the invention is to provide asimple and eflicient construction of stretcher for lace curtains and the like and particularly to provide a connection between the main longitudinal and transverse Ytrarne elements whereby the proper angular relation of said parts may be maintained. while permitting of the necessary adjustment to accommodate curtains of different dimensions; and with these objects in view the invention consists in a construction and combination of parts of which a preferred embodiment is shown in the accompanying drawings, wherein Figure 1 is a plan view of a stretcher embodying the invention.

Figure 2 is a transverse sectional view of the same on the plane indicated by the line 22 of Figure l.

Figure 3 is a detail view of one ofthe coupling members detached.

Figure a is a detail transverse section of one of the stretcher bars on the plane indicated by the line lf- 4: of Figure 1 to show the construction and mounting of curtain engaging pins. j

Figure `5 is a detail view of one of the pins.

'lihe stretcher consists of the longitudinal stretcher bars 1() which may be graduated as indicated and a transverse connecting bar 11, and connecting the longitudinal stretcher bars are transverse stretcher bars 12 which also may be graduated as illustrated in common with the intermediate connecting bar 11.

'llhe connection between the intermediate bar 11 and the longitudinal stretcher bars consists of couplers 13 made preferably of heavy sheet metal of which the head portions 14 are transversely ulshaped and the `shank portions 15 transversely ttl-shaped,

as indicated clearly in Figure 3. '.lhe shank portions of the couplers embrace and engage the bar 11 while the head portions are secured to the under faces of the longitudinal stretcher bars by means of rivets 18, these rivets also passing through and sev curing to `the longitudinal stretcher bars the plates 1i" secured to the outer faces thereof. 'lhe upper of the "'lcouplings having its shank secured to the bar 11 by means of a rivet 19 while the lower coupling is secured to the bar by means of a bolt EZ() engaging a longitudinal slot 21 in the cross bar to provide for relative lateral adjust* ment of the lower longitudinal stretcher bar at an intermediate point to correspond with the adjustment made with reference to the transverse bars 12.

The terminals of the longitudinal stretcher bars are connected with the transverse stretcher bars by similar bolts 22 passing through longitudinal slots 23 in the longi tudinal stretcher bars and through the transverse stretcher bars, two of said bolts extending through slots 2li in the transverse stretcher bars of which each is provided. with a slot at the end corresponding with the slot 21 in the intermediate or transverse frame bar 11. 'Fliese bolts are provided with suitable thumb nuts for locking the bars in their adjusted positions.

At their inner edges the longitudinal and transverse stretcher bars are reduced in thickness to form ledges25 and carried by these ledges are the curtain engaging pins 26 which in the construction illustrated are of double form having intermediate slide portions 27 fitted in the oppositely eutending guide kerfs 28 formed in the bars and extended at their ends to form the hooks 29 which project into the angles formed by the ledges 25 to engage the edges of the curtain or object to be stretched. The pins are adapted to be adjusted in the kerfs while displacement thereof is prevented by the oppositely facing relation of said kerfs and the engagement of opposite sides of the body portions of the pins there-- wit Having described the invention, what is claimed as new and useful is A curtain stretcher having longitudinal stretcher bars and transverse stretcher bars adjustably connected with the longitudinal stretcher bars7 a transverse frame bar spanning the longitudinal stretcher bars at intermediate points7 llcouplings connecting the transverse frame bar with the longitudinal stretcher bar and embodying tt shaped Shanks and transversely "lV-shaped heads of which the latter are secured plings, the shank of one of said T-couplings being permanently secured to the trnnsvel'sc 4:traine bai' and the shank of the other T- Coupling` udjustably seeui'ed to said transverse frame bai'.

In testiniongY whereof he :illixes his signature.

EMIL S, ANDERSON. 

